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Mercedes-Benz · NHTSA safety record

2012 Mercedes-Benz GLK350

Every safety complaint, recall and defect investigation the US government holds on this vehicle.

167

Complaints

5

Crashes

0

Fires

3

Injuries

0

Deaths

Owners of the 2012 Mercedes-Benz GLK350 have filed 167 safety complaints with NHTSA between May 2013 and January 2026. The most complained-about system is the air bags, named in 132 of them (79%). The typical failure was reported at 45,000 miles, the median across the 23 complaints that gave an odometer reading.

NHTSA has issued 4 recalls covering this vehicle. A further 1 defect investigation is open and unresolved.

Recalls (4)

AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

19V010000 · January 9, 2019

The defect
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2014 C250, C300 4Matic, C350, C63 AMG, E350 4Matic Coupe, E350 Cabrio, E350 Coupe, SLS AMG Cabrio, SLS AMG Coupe, 2014-2015 C250 Coupe, C350 4Matic Coupe, C350 Coupe, C63 AMG Coupe, GLK 350, GLK250 BlueTec 4Matic, GLK350 RWD, 2015-2017 E400 4Matic Coupe, E400 Cabrio, E400 Coupe, 2014-2017 E550 Cabrio, and 2014-2016 E550 Coupe vehicles sold, or ever registered, in the states of AL, CA, FL, GA, HI, LA, MS, SC, TX, PR, AS, GU, the MP, and VI or "Zone A." Additionally, MBUSA is recalling certain 2012-2014 C250, E350 4Matic Coupe, SLS AMG Cabrio, 2012-2015 C250 Coupe, C350 4Matic Coupe, C350 Coupe, C63 AMG Coupe, 2011 C300, 2011-2014 C300 4Matic, C350, C63 AMG, E350 Cabrio, E350 Coupe, SLS AMG Coupe, 2015-2016 E400 4Matic Coupe, E400 Cabrio, E400 Coupe, 2011-2016 E550 Cabrio, E550 Coupe, 2011-2015 GLK350 4Matic, GLK350 RWD, and 2013-2015 GLK250 BlueTec 4Matic vehicles ever registered in the states of AZ, AR, DE, DC, IL, IN, KS, KY, MD, MO, NE, NV, NJ, NM, NC, OH, OK, PA, TN, VA, and WV or "Zone B." MBUSA is also recalling certain 2012-2014 C250, E350 4Matic Coupe, SLS AMG Cabrio 2012-2015 C250 Coupe, C350 4Matic Coupe, C350 Coupe, C63 AMG Coupe, 2010-2011 C300, 2010-2014 C300 4Matic, C350, C63 AMG, E350 Coupe, 2011-2014 E350 Cabrio, SLS AMG Coupe, 2015-2016 E400 4Matic Coupe, E400 Cabrio, E400 Coupe, 2016-2017 E550 Cabrio, 2010-2016 E550 Coupe, 2010-2015 GLK350 4Matic, GLK350 RWD, and 2013-2015 GLK250 BlueTec 4Matic vehicles ever registered in the states of AK, CO, CT, ID, IA, ME, MA, MI, MN, MO, NH, NY, ND, OR, RI, SD, UT, VT, WA, WI and WY or "Zone C." These vehicles are equipped with air bag inflators assembled as part of the passenger frontal air bag modules that may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, temperature and temperature cycling.
The risk
An inflator explosion may result in sharp metal fragments striking the passenger or other occupants resulting in serious injury or death.
The remedy
MBUSA will notify owners, and dealers will replace the passenger frontal air bag module, free of charge. The recall began March 29, 2019. Owners may contact MBUSA customer service at 1-800-367-6372.

Mercedes-Benz USA, LLC. · up to 288,779 vehicles across all model years covered

AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

17V017000 · January 10, 2017

The defect
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2012 C300 4Matic, C250, C250 Coupe, C350, C350 Coupe 4Matic, C350 Coupe, C63 AMG, C63 AMG Coupe, E350 Coupe 4Matic, E350 Cabrio, E350 Coupe, E550 Cabrio, E550 Coupe, GLK350 4Matic, GLK350, SLS AMG Cabrio, and SLS AMG Coupe vehicles originally sold, or ever registered, in Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan), and the U.S. Virgin Islands, or "Zone A." Additionally, unless included in "Zone A" above MBUSA is recalling certain 2009 C300 4Matic, C300, C350 and C63 AMG vehicles originally sold, or ever registered, in Arizona, Arkansas, Delaware, District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia, or "Zone B." Additionally, unless included in "Zone A" or "Zone B" above MBUSA is recalling certain 2008 C300 4Matic, C300, and C350 vehicles originally sold, or ever registered, in Alaska, Colorado, Connecticut, Idaho, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New York, North Dakota, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, Wisconsin, and Wyoming. These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules, and used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the front air bags, these inflators may rupture due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.
The risk
An inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury or death.
The remedy
MBUSA will notify owners, and dealers will replace the front passenger air bag modules, free of charge. Owners were sent an interim notification in March 2017. Second notices started going out in October 2018 and continue to be mailed as parts become available. Owners may contact MBUSA customer service at 1-877-496-3691

Mercedes-Benz USA, LLC. · up to 104,119 vehicles across all model years covered

AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR MODULE

16V081000 · February 11, 2016

The defect
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain model year 2009-2010 ML320 BlueTec 4Matic, GL320 BlueTec 4Matic and R320 CDI 4Matic, 2011 E350 Cabriolet and E550 Cabriolet, 2009-2011 ML350, ML350 4Matic, ML550 4Matic, ML63 AMG, and C63 AMG, 2010-2011 ML450 4Matic Hybrid, E350 Coupe, E350 4Matic, E550 Coupe, E550 4Matic, and E63 AMG, 2011-2012 GL350 BlueTec 4Matic and R350 BlueTec 4Matic, 2009-2012 GL450 4Matic, GL550 4Matic and R350 4Matic, 2007-2008 SLK280, SLK350, and SLK55 AMG, 2011-2014 SLS AMG Coupe, 2012 SLS AMG Cabriolet, 2013-2014 SLS AMG GT and SLS AMG GT Cabriolet, 2005 C230 Kompressor and C320, 2006-2007 C230, 2006-2011 C350, 2008-2011 C300 and C300 4Matic, 2010-2012 GLK350 and GLK350 4Matic and 2007-2008 Chrysler Crossfire vehicles. Upon deployment of the driver's frontal air bag, excessive internal pressure may cause the inflator to rupture.
The risk
In the event of a crash necessitating deployment of the driver's frontal air bag, the inflator could rupture with metal fragments striking the driver or other occupants resulting in serious injury or death.
The remedy
MBUSA will their notify owners, and Fiat Chrysler will notify the affected Chrysler owners. Dealers for the respective brands will replace the driver's frontal air bag module, free of charge. This recall began November 2016. Mercedes-Benz owners may contact MBUSA customer service at 1-800-367-6372 and Chrysler owners may contact Fiat Chrysler customer service at 1-800-853-1403.

Mercedes-Benz USA, LLC. · up to 711,159 vehicles across all model years covered

FUEL SYSTEM, GASOLINE

12V557000 · December 3, 2012

The defect
Mercedes-Benz is recalling certain model year 2011-2012 S400, S550, S550 4Matic, S63 AMG, C300, C300 4Matic, E350, GLK350, GLK350 4Matic, CL550 4Matic, and CL63 AMG vehicles manufactured from April 18, 2011, through July 12, 2011. Due to an irregularity stemming from the molding process of the fuel filter flange, the fuel filter flange may crack when operated in high temperatures.
The risk
If the fuel filter flange cracks, it will leak fuel which may lead to a fire if an external ignition source is present.
The remedy
Mercedes-Benz will notify owners, and dealers will replace the fuel filter, free of charge. The recall campaign is expected to begin in February 2013. Owners may contact Mercedes-Benz at 1-800-367-6372.

Mercedes-Benz USA, LLC. · up to 5,800 vehicles across all model years covered

Defect investigations (1)

An investigation means NHTSA has decided a pattern is worth examining. A preliminary evaluation is often closed with no action; an engineering analysis is the stage that usually precedes a recall.

Desiccated Air Bag Inflator Rupture

EA21002

Still open engineering analysis · opened September 17, 2021

the air bags

From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deployment, potentially causing serious or even fatal injury to vehicle occupants. See 2016 Blomquist Report at www.nhtsa.gov/sites/nhtsa.gov/files/documents/expert_report-hrblomquist.pdf.Consequently, all frontal inflators using propellant 2004 that do not contain a "desiccant" (a substance that traps and holds moisture) in US vehicles are under recall. These "non-desiccated" inflators either have been or are required to be replaced.In some cases, the remedy part for these recalled inflators was, or will be, an inflator using either propellant 2004 or 2004L that does contain a desiccant. None of these "desiccated" remedy parts (which were installed in older model year vehicles) are currently under recall for a degradation concern. Certain subsets of desiccated PSAN inflators using propellant 2004 for use as original equipment, however, have been recalled for a degradation concern. All Takata inflators produced with propellant 2004L contain desiccant, and none of these desiccated inflators using propellant 2004L are under recall for a degradation concern. There have been no reported field ruptures in any non-recalled desiccated PSAN inflators.It is understood that desiccants fully saturate at some threshold, at which point any additional moisture will not be captured. This means the degradation process observed in non-desiccated inflators using propellant 2004 may also occur in non-recalled desiccated inflators using propellant 2004, assuming additional moisture enters the inflator and high temperature cycling occurs. Based on available information, desiccant saturation can occur within the first five years in the worst environments, and the time required for full saturation is affected by multiple factors. While no present safety risk has been identified, further work is needed to evaluate the future risk of non-recalled desiccated inflators using propellant 2004.Three entities -- Takata (now known as TK Global), the Independent Testing Coalition, and Exponent -- have been studying the long-term behavior of Takata desiccated PSAN inflators using propellant 2004L (as well as 2004) in the presence of moisture and temperature cycling. The research efforts, which include development of predictive modeling techniques and field sample analysis, are ongoing. To date, none of the researchers have identified field evidence showing that propellant 2004L is undergoing a degradation process that leads to aggressive deployment and potential rupture. However, the time in service of such inflators remains short compared to that of the inflators using propellant 2004. Further study is needed to assess the long-term safety of desiccated inflators using propellant 2004L.The Office of Defects Investigation is opening this investigation to examine whether a safety defect related to propellant degradation exists in non-recalled desiccated PSAN frontal inflators manufactured by Takata. This investigation will require extensive information on Takata production processes and surveys of inflators in the field. Lists of recall actions that may have used desiccated PSAN inflators as remedy parts, as well as the makes and models originally manufactured with them, is available with the downloadable version of this document (see nhtsa.gov/recalls?nhtsaId=EA21002 -- note this information is subject to change/revision as the investigation proceeds). This investigation does not supersede EA15-001, which remains open.

What owners report

Complaints naming each system. One complaint can name several, so these add up to more than 167.

AIR BAGS 132 79%
FUEL/PROPULSION SYSTEM 12 7%
UNKNOWN OR OTHER 7 4%
SERVICE BRAKES 6 4%
ELECTRICAL SYSTEM 4 2%
SUSPENSION 4 2%
POWER TRAIN 3 2%
SEATS 3 2%
STEERING 3 2%
ENGINE 2 1%
STRUCTURE 2 1%
WHEELS 2 1%

When the complaints arrived

By the year NHTSA received them, which is not the year the failures happened. They peaked in 2017 at 68.

2013 2017 2026
2013 to 2026, the last of them a part year

In owners' own words

Quoted from NHTSA's complaint file. These are unverified accounts by the people who filed them, not findings of fault.

AIR BAGS

1 injured · crash · 30,000 miles

TL* THE CONTACT OWNS A 2012 MERCEDES-BENZ GLK350. WHILE DRIVING APPROXIMATELY 50 MPH, ANOTHER VEHICLE CRASHED INTO THE CONTACT'S VEHICLE. THE CONTACT STATED THAT ONLY THE TWO HEADREST AIR BAGS DEPLOY. THE CONTACT SUSTAINED INTERNAL INJURIES TO THE HEAD AND BODY THAT REQUIRED MEDICAL ATTENTION. THE DRIVER OF THE OTHER VEHICLE SUSTAINED INJURIES THAT ALSO REQUIRED MEDICAL ATTENTION. A POLICE REPORT WAS FILED. THE CONTACT WAS ABLE TO DRIVE THE VEHICLE FROM THE SCENE. A WEEK LATER, THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC AND THE BODY DAMAGE WAS REPAIRED. THE VIN WAS INCLUDED IN NHTSA CAMPAIGN NUMBERS: 16V081000 (AIR BAGS) AND 17V017000 (AIR BAGS). THE MANUFACTURER WAS NOT MADE AWARE OF

NHTSA complaint 10960049, quoted in part. Filed by an owner and not verified by NHTSA or by us.

ELECTRICAL SYSTEM

1 injured · 15,210 miles

WHEN DRIVING 40 MPH OR MORE, THE ENGINE STALLS AND THE UNIT IN THE DASHBOARD THAT CONTAINS THE ODOMETER AND SPEED, BEGINS TO TURN WHITE IN COLOR. IT APPEARS THE SOFTWARE ERROR WITHIN THE ENGINE CONTROL UNIT CAUSES THE VEHICLE TO STALL WHEN DRIVING AT A CERTAIN SPEED OR WHEN I AM COASTING TO A STOP, SUCH AS AT A TRAFFIC LIGHT. MY VEHICLE BEGINS TO SHUT-DOWN IN THE MIST OF MY DRIVING AT 40 MPH OR MORE, HOWEVER, WHEN I PUT MY FOOT ON THE BRAKE, THE ENGINE PICKS UP SPEED. THESE EVENTS ARE TERRIFYING, BECAUSE I CAN'T TELL IF THE VEHICLE IS GOING TO SHUT DOWN IN THE MIDDLE OF THE HIGHWAY AND INCREASE MY RISK OF CRASHING. THESE EVENTS HAVE BEEN ONGOING FOR OVER ONE YEAR. I HAVE TAKEN THE VEHICLE

NHTSA complaint 10790053, quoted in part. Filed by an owner and not verified by NHTSA or by us.

SEATS

1 injured

My passenger got 2 degree burns to his right buttocks and seat is melted ...he is a paralyzed patient i took him to the er and the burn center i have pictures and documentation....my guess the seat got to hot melted and burned him this what doctors concluded the is very scary for a seat to burn the skin off your butt

NHTSA complaint 11696034. Filed by an owner and not verified by NHTSA or by us.

STRUCTURE:BODY

crash · towed · 41,000 miles

WHILE PARKING MY CAR IN A GARAGE, IT ACCELERATED. UPON APPLYING THE BRAKES, IT SPEEDED UP CAUSING ME TO CRASH INTO A CONCRETE BARRIER. AIR BAG DID NOT DEPLOY.

NHTSA complaint 10810779. Filed by an owner and not verified by NHTSA or by us.

AIR BAGS

crash · towed

On August 17, 2025 I rearended a vehicle in front of me who jammed on their brakes for no apparent reason. We were the only two vehicles in the area. Upon impact, the following airbags deployed....steering wheel, driver knee airbag. I sustained injuries to my lower extremities from the exploded knee airbag which contained metal components that impaled my skin. I continue to receive treatment for multiple injuries and the wounds that have not healed. My safety was at risk due to the metal components (shrapnel) deployed via the exploded knee airbag. I also sustained injuries my left wrist from the steering wheel airbag, and my left chest from the tightening of the seatbelt. The local Mercedes

NHTSA complaint 11711759, quoted in part. Filed by an owner and not verified by NHTSA or by us.

SUSPENSION
I brought my car in to my local mechanic and was told my rear suspension was corroded. He said it would cost around five thousand dollars to repair. I researched online and found mercedes did not have a recall but has extended the warranty and will cover the repair to the rear suspension. The mercedes dealer called me and told me my brake lines were rusted out and needed replacement and that it was not covered by the extended warranty and would cost thirty five hundred dollars. In all my years of driving, I have never had the brake lines rust out on a vehicle and can't imagine that this is not related to the suspension issue. I have done some research and seen many mercedes owners have had

NHTSA complaint 11701710, quoted in part. Filed by an owner and not verified by NHTSA or by us.

POWER TRAIN
Driveshaft broke, peeling rims

NHTSA complaint 11666128. Filed by an owner and not verified by NHTSA or by us.

SEATS
The seats on both the passenger and driver size has split at the seams. They began to appear in 2012. The battery failed and the car would not start. Periodically the car starts up slow. The car bucks in a hard motion when trying to accelerate. The car makes a grinding noise, with a dragging feeling, while driving. Mechanics cannot figure out what or where the sound and feeling is coming from.

NHTSA complaint 11665203. Filed by an owner and not verified by NHTSA or by us.

STEERING
Electronic steering wheel lock is broken and engine will not start because of lock.

NHTSA complaint 11643579. Filed by an owner and not verified by NHTSA or by us.

Compare

Other years of the Mercedes-Benz GLK350

Model year Complaints Recalls Deaths
2015 114 4 1
2014 104 5 1
2013 137 6
2011 133 4
2010 241 5

Other 2012 Mercedes-Benz models

Every Mercedes-Benz on this site — 216 vehicles, 576 recall campaigns and 1 open investigation .

If this is your car and a dealer keeps failing to fix it, your state's lemon law may require the manufacturer to replace it or buy it back. What each state asks for , read from the statutes.

Where these numbers come from

A complaint is one owner's account and has not been verified by NHTSA or by us. A vehicle with more complaints is not necessarily worse: models that sold in larger numbers collect more of them. How this is counted.

Compiled and maintained by
Independent developer and analyst